"Transparent" billboard

Artist Cayetano Ferrer created a "transparent" billboard by photographing the trees hidden by a 30-foot billboard in Daejeon, Korea and then pasting the image onto the billboard. He purposely removed a section of the billboard and put the missing piece of the image on another smaller billboard nearby. And in related news, I was supposed to put up a life-size picture of my wang on a billboard but it wouldn't fit. True story.